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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Repairs, tuning, modifications, & maintenance.
Vortec 4.2L I-6
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PO442
Yesterday at 8:19 AM
Mooseman
Drivetrain
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13.3K
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1.1K
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13.3K
Crimping new trans cooler lines
Yesterday at 6:24 PM
JayArr
Vortec 5.3L V8
New
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5.2K
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394
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0
Runs rough couple miles after starting
May 10, 2024
04envoyxlv8
LS2 6.0L V8
40
839
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40
Posts
839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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D
Regular or synthetic oil what do you guys think
dazingla
Jul 25, 2013
Replies
30
Views
7K
Aug 15, 2013
HARDTRAILZ
Troubleshooting the NVG 226 transfer case.
DenaliHD66
Jul 23, 2013
Replies
2
Views
3K
Jul 23, 2013
DenaliHD66
Year long battle is finally over...
Boricua SS
Jul 18, 2013
Replies
28
Views
2K
Jul 20, 2013
Boricua SS
Common fluids table for gmt360
jrSS
Jul 15, 2013
Replies
0
Views
765
Jul 15, 2013
jrSS
Odometer discrepancy on carfax
Canary2323
Jul 9, 2013
Replies
1
Views
838
Jul 9, 2013
jonbo2002
J
Engine wont turn off
anthonyl79
Jul 8, 2013
Replies
2
Views
888
Jul 8, 2013
anthonyl79
Gas caps ext and.non ext
Ghost
Jun 30, 2013
Replies
3
Views
763
Jul 10, 2013
seanpooh
Broken Coil Pack Bolt...
jason43080
Jun 30, 2013
Replies
11
Views
13K
Jul 3, 2013
triz
Is this ignition switch??
ScottS
Jun 26, 2013
Replies
5
Views
1K
Jun 26, 2013
MAY03LT
TICKING from UNDER the engine?
DenaliHD66
Jun 26, 2013
Replies
3
Views
978
Jun 26, 2013
Black LT
SOMETHING Just blew...
DenaliHD66
Jun 24, 2013
2
3
Replies
116
Views
7K
Aug 19, 2013
DenaliHD66
K
Replaced thermostat now having AC problems
KLPEARS1
Jun 18, 2013
Replies
13
Views
1K
Jun 21, 2013
MAY03LT
F
Phantom switches from 2 wheel drive to 4 wheel drive
Fpatka
Jun 18, 2013
Replies
6
Views
815
Jun 18, 2013
The_Roadie
what tune should I get?
Canary2323
Jun 18, 2013
Replies
8
Views
1K
Jun 21, 2013
dmanns67
B
How much does your temp gauge vary in hot weather?
bugeyed
Jun 16, 2013
Replies
20
Views
2K
Jun 21, 2013
CaptainXL
C
R
I am having problems after slowing at light
Razorback
Jun 16, 2013
Replies
6
Views
1K
Jun 19, 2013
JCOLEMAN45177
J
R
2002 Envoy with rough idle - very strange
r.wiegand100
Jun 15, 2013
Replies
8
Views
2K
Jun 24, 2013
The_Roadie
D
cold air intake
duckyweed
Jun 11, 2013
Replies
37
Views
3K
Jun 20, 2013
Grimor
M
Junkyard/Used Engines in Michigan
MDBT
Jun 10, 2013
Replies
8
Views
1K
Jun 11, 2013
MDBT
M
Engine Dress up!
CDJuda
Jun 8, 2013
Replies
13
Views
1K
Sep 9, 2013
Blckshdw
R
Spark plug change and maintenance
rlc3854
Jun 8, 2013
Replies
6
Views
1K
Jun 10, 2013
imotto
I
I6 Sputter, Surge, Hesitation, Loss of power, fixed by replace Manifold Oxygen Sensor
Billdaman
Jun 5, 2013
Replies
8
Views
2K
Jul 3, 2013
C-ya
B
Leaking radiator.
bugeyed
Jun 3, 2013
Replies
5
Views
1K
Jun 4, 2013
bugeyed
B
A
New Engine
andy702252
Jun 3, 2013
Replies
2
Views
1K
Jul 4, 2013
Tiggerr
A
2003 Chevy Trailblazer
Ahawki
Jun 1, 2013
Replies
2
Views
851
Jun 1, 2013
Sir ffeJ
I
Trailblazer SS Rear into Non-SS Questions
impynyc
May 29, 2013
Replies
0
Views
2K
May 29, 2013
impynyc
I
Help Needed with removing transmission pan
am-radio
May 22, 2013
Replies
5
Views
1K
May 22, 2013
CaptainXL
C
Oil change question:
DenaliHD66
May 22, 2013
Replies
10
Views
1K
Jul 10, 2013
djthumper
Air box intake (viking horn looking thing)
Ryda55555
May 21, 2013
Replies
10
Views
2K
May 24, 2013
blazinlow89
H
Fan clutch help...
hicksb15
May 21, 2013
Replies
4
Views
1K
May 22, 2013
hicksb15
H
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